<template>
  <el-form>
    <el-form-item>
      <el-radio v-model="radioValue" :label="1"> 秒，允许的通配符[, - * /] </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="2">
        周期从
        <el-input-number v-model="cycle01" :min="0" :max="58" /> -
        <el-input-number v-model="cycle02" :min="cycle01 ? cycle01 + 1 : 1" :max="59" />
        秒
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="3">
        从
        <el-input-number v-model="average01" :min="0" :max="58" /> 秒开始，每
        <el-input-number v-model="average02" :min="1" :max="59 - average01 || 0" />
        秒执行一次
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="4">
        指定
        <el-select clearable v-model="checkboxList" placeholder="可多选" multiple style="width: 100%">
          <el-option v-for="item in 60" :key="item" :value="item - 1">{{
            item - 1
          }}</el-option>
        </el-select>
      </el-radio>
    </el-form-item>
  </el-form>
</template>

<script>
export default {
  data() {
    return {
      radioValue: 1,
      cycle01: 1,
      cycle02: 2,
      average01: 0,
      average02: 1,
      checkboxList: [],
      checkNum: this.$props.check
    }
  },
  name: 'crontab-second',
  props: ['check', 'radioParent'],
  methods: {
    // 单选按钮值变化时
    radioChange() {
      switch (this.radioValue) {
        case 1:
          this.$emit('update', 'second', '*', 'second')
          break
        case 2:
          this.$emit('update', 'second', this.cycleTotal)
          break
        case 3:
          this.$emit('update', 'second', this.averageTotal)
          break
        case 4:
          this.$emit('update', 'second', this.checkboxString)
          break
      }
    },
    // 周期两个值变化时
    cycleChange() {
      if (this.radioValue == '2') {
        this.$emit('update', 'second', this.cycleTotal)
      }
    },
    // 平均两个值变化时
    averageChange() {
      if (this.radioValue == '3') {
        this.$emit('update', 'second', this.averageTotal)
      }
    },
    // checkbox值变化时
    checkboxChange() {
      if (this.radioValue == '4') {
        this.$emit('update', 'second', this.checkboxString)
      }
    }
  },
  watch: {
    radioValue: 'radioChange',
    cycleTotal: 'cycleChange',
    averageTotal: 'averageChange',
    checkboxString: 'checkboxChange',
    radioParent() {
      this.radioValue = this.radioParent
    }
  },
  computed: {
    // 计算两个周期值
    cycleTotal: function () {
      const cycle01 = this.checkNum(this.cycle01, 0, 58)
      const cycle02 = this.checkNum(
        this.cycle02,
        cycle01 ? cycle01 + 1 : 1,
        59
      )
      return cycle01 + '-' + cycle02
    },
    // 计算平均用到的值
    averageTotal: function () {
      const average01 = this.checkNum(this.average01, 0, 58)
      const average02 = this.checkNum(this.average02, 1, 59 - average01 || 0)
      return average01 + '/' + average02
    },
    // 计算勾选的checkbox值合集
    checkboxString: function () {
      let str = this.checkboxList.join()
      return str == '' ? '*' : str
    }
  }
}
</script>
